Scott,
I just started noticing today that my knee on the inside front is feeling stiff and uncomfortable when walking or bending my knee. I tested it out with some simple lower body exercises and the knee started hurting when I did a reverse lung.
I just started month 2 of the 12 week challenge.
Do you have any suggestions for some work arounds on lower body day or recommendations for some substitute routines for me to avoid the lower body for a few weeks but still keep the hard work up?